CN201214817Y

CN201214817Y - Pneumatic push button with air compensating structure

Info

Publication number: CN201214817Y
Application number: CNU2008200243573U
Authority: CN
Inventors: 彭东; 于兴义
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-16
Filing date: 2008-06-16
Publication date: 2009-04-01
Anticipated expiration: 2018-06-16

Abstract

The utility model discloses a pneumatic button with an air complementing structure; a panel hood and the top part of a body are in interference fit; the cavity of the body is sheathed with a keystroke, a guide column, a compressed air cell and an offset spring in turn; a flange on the guide column is clamped with the lower edge of the penal hood; a base is clamped in an S shape with the bottom part of the compressed air cell and clamps the bottom part into the inner wall of the cavity of the body; the base is clamped with the body; the guide rod of the guide column is inserted a pipe column on the base; a hole column blow the base is communicated with the pipe column; the bottom part of the guide column is provided with an annular slot which is sheathed with the top part of the air cell; an annular sealed element rest is arranged in the annular slot along the outside of the guide rod; the annular sealed element rest is contacted with an elastic ring at the top part of the compressed air cell in a pressing way; a ventilating hole is arranged in the annular slot on the outside of the annular sealed element rest. The ventilating hole is arranged in the annular slot at the outside of the annular sealed element rest; the annular sealed element rest is contacted with the elastic ring of the compressed air cell in a pressing way for leading the compressed air cell to generate excellent air tightness; when the air cell is lifted by the offset spring, air is complemented to the compressed air cell by the ventilating hole, thus ensuring the pneumatic button with an air complementing structure to be capable of providing enough air during next work.

Description

A kind of pneumatic button with gas supplementary structure

Technical field

The utility model relates to the starting drive of water tank drain valve actuating unit, is applicable to that particularly the gas control power transmission starts a kind of pneumatic button with gas supplementary structure of water tank drain valve.

Background technology

Water tank drain valve adopts pneumatic power transmission actuating mechanism, because of the installation of its suitable all directions has stronger suitability, but in use, promote the extruding of air bag on laboured breathing in the pneumatic button and the draining valve in external force, and adopt flexible pipe to connect between the two, the air of their inside has a little and leaks out seal, thereby use the air capacity of their inside to reduce, air pressure descends, influence utilizes the effect of air as the media power transmission, so must to the air capacity of their both inside and pressure replenish and balance after each work, with the integrity problem of solution gas control button.

The utility model content

For addressing the above problem, the utility model is intended to propose a kind of pneumatic button with gas supplementary structure.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of pneumatic button with gas supplementary structure, dial hood is connected with the bodies top interference fit, be with button, guide pillar, compressing gasbag, back-moving spring in the body cavity from top to bottom successively, block mutually with the lower edge of dial hood convex edge on the guide pillar, base engages with compressing gasbag bottom S shape and it is pressed in the body cavity inwall, base engages with body, the guide rod of guide pillar plugs together in the tubing string on base, and the Kong Zhuyu tubing string under the base is communicated with; It is characterized in that: the guide pillar bottom is provided with the annular groove with compressing gasbag top fit, is provided with a ring packing convex tendon in the external annular groove of guide rod, and the elastic ring at seal bead and compressing gasbag top is pressed and touched, and is provided with an air vent in the annular groove in the seal bead outside.

The two ends of the compressing gasbag that the utility model adopts are circular open, and the opening at its top is used for the insertion of guide rod, and the opening of bottom is used for and base engaging sealing.

The beneficial effects of the utility model are: with the annular groove of the guide pillar bottom of the top fit of compressing gasbag in be provided with air vent, air vent is in the seal bead outside in the annular groove, the elastic ring of seal bead and compressing gasbag is pressed and is touched, produce good air-tightness when making the air bag compression, be reset spring top when stretching at air bag, to tonifying Qi in the compressing gasbag, guarantee that the utility model can provide sufficient air capacity by air vent when descending task.

Description of drawings

Fig. 1 is a package assembly exploded view of the present utility model;

Fig. 2 is the utility model compressing gasbag top structure schematic diagram;

Fig. 3 is the utility model compressing gasbag polycrystalline substance schematic diagram;

Fig. 4 is the utility model guide pillar perspective view;

Fig. 5 is the utility model work original state schematic diagram;

Fig. 6 is the partial enlarged drawing of Fig. 5;

Working state figure when Fig. 7 is the utility model button pressed;

Working state figure when Fig. 8 rises for the utility model button;

Fig. 9 is the partial enlarged drawing of Fig. 8.

Figure 10 is the promotion air bag connection diagram of the utility model and gas control draining valve.

Among the figure: 1. dial hood; 2. button; 3. guide pillar; 3.1. convex edge; 3.2. guide rod; 3.3. annular groove; 3.4. seal bead; 3.5. air vent; 4. body; 5. compressing gasbag; 5.1. elastic ring; 5.2. end face; 6. back-moving spring; 7. base; 7.1. tubing string; 7.2. hole post; 8. flexible pipe; 9. draining valve; 10. bindiny mechanism; 11. pull bar; 12. promotion air bag.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

A kind of pneumatic button as shown in Figure 1 with gas supplementary structure, dial hood 1 is connected with body 4 top interference fit, be with button 2 in body 4 chambeies from top to bottom successively, guide pillar 3, compressing gasbag 5, back-moving spring 6, block mutually with the lower edge of dial hood 1 convex edge 3.1 on the guide pillar 3, button 2 is connected with guide pillar 3 buckles, extremely shown in Figure 6 as Fig. 2, the two ends of compressing gasbag 5 are circular open, base 7 engages with compressing gasbag 5 bottom S shapes and it is pressed in body 4 cavity walls, compressing gasbag 5 and base 7 edges form good air-tightness, base 7 is fixed with body 4, the guide rod 3.2 of guide pillar 3 plugs together in the tubing string 7.1 on base 7, guide rod 3.2 can slide in tubing string 7.1, and the hole post 7.2 under the base 7 is communicated with tubing string 7.1; Guide pillar 3 bottoms are provided with the annular groove 3.3 with compressing gasbag 5 top fits, in guide rod 3.2 external annular grooves 3.3, be provided with a ring packing convex tendon 3.4, seal bead 3.4 is pressed with the elastic ring 5.1 at compressing gasbag 5 tops and is touched, and is provided with an air vent 3.5 in the annular groove 3.3 in seal bead 3.4 outsides.

Original state of the present utility model as shown in Figure 5, the elastic ring 5.1 of compressing gasbag 5 are pressed with the seal bead 3.4 on the guide pillar 3 and are touched, and the end face 5.2 at compressing gasbag 5 tops is sealed the air vent 3.5 (as Fig. 6) in the annular groove 3.3.As shown in figure 10, hole of the present utility model post 7.2 is connected with the promotion air bag 12 of gas control draining valve 9 by flexible pipe 8; As shown in Figure 7, pressing keys 2, guide pillar 3 presses down compressing gasbag 5, compressing gasbag 5 internal pressurization, the elastic ring 5.1 of pressurized is tightly pressed to touch with seal bead 3.4 and is formed sealing, and the end face 5.2 at compressing gasbag 5 tops is pushed down air vent 3.5 simultaneously, makes compressing gasbag 5 have good air-tightness, then the flexible pipe 8 of the gas of compressing gasbag 5 through being connected with hole post 7.2 under the air bag base 7 is delivered to and promotes air bag 12, makes that promoting air bag 12 jacking bindiny mechanisms 10 drives 9 drainings of pull bars 11 startup draining valves; As Fig. 8 and shown in Figure 9, unclamp button 2, compressing gasbag 5 restPoses under the restoring force effect of back-moving spring 6 in the process fast, 5 is under-voltage in the compressing gasbag, the gas that promotes air bag 12 is compressed air bag 5 and sucks back, and air sucks from air vent 3.5 simultaneously, and elastic ring turns over for 5.1 times with seal bead 3.4 and separates, air is mended the compressing gasbag 5 from guide pillar 3 and compressing gasbag 5 formed gaps, and making when basis is novel to be used next time has enough air capacities to provide in the compressing gasbag 5.

Claims

1. pneumatic button with gas supplementary structure, dial hood is connected with the bodies top interference fit, be with button, guide pillar, compressing gasbag, back-moving spring in the body cavity from top to bottom successively, block mutually with the lower edge of dial hood convex edge on the guide pillar, base engages with compressing gasbag bottom S shape and it is pressed in the body cavity inwall, base engages with body, and the guide rod of guide pillar plugs together in the tubing string on base, and the Kong Zhuyu tubing string under the base is communicated with; It is characterized in that: the guide pillar bottom is provided with the annular groove with compressing gasbag top fit, is provided with a ring packing convex tendon in the external annular groove of guide rod, and the elastic ring at seal bead and compressing gasbag top is pressed and touched, and is provided with an air vent in the annular groove in the seal bead outside.

2. a kind of pneumatic button with gas supplementary structure according to claim 1, it is characterized in that: the two ends of compressing gasbag are circular open.